Gags-cock



Ef R..KOTTKE.

GAGE COCK.

APPLICATION FILED MAH. 6. 1919.

Patented Nov. 25, 1919.

EDTNARD E. KOTTKE, OF ST. PAUL, MINNESOTA, ASSIGNGR 0F iE-Thli Til- Iii'.. T. KRBASCH, 0F ST. FAUL, MNNEST.

GAGE-COCK.

inserer.

To @ZZ whom t may concern:

Be it known that EDWARD R. Koriirn, o citizen of the United States, residing et St. Paul, in the county of Ronisey'and State of Minnesota, have invented certain new and useful lliiiprovenients in Gage-Cocks, of which the following is e specification.

This invention relates to gage cocks and incre particularly io the types cominonly used on locomotive boilers for ascertaining the level of the water therein.

in object ot' the invention is to provide e. gege cook, the interior of which is not open to incrustation except when its valve isunseated. l

A further object of the invention is to provide :t device that niay be removed troni the boilerl without disturbing the insulation, customarily covering the outside of the boiler Well.

A still further object of the invention is to provide o. gage cock soconstincted as to be comparatively safe against accidents.

Referring to drawings:

Figure l, is e side view of the invention as npplied to the vertical wall of :t boiler.

Fier. 2, is ai longitudinal sectional View of the invention the valve stein being shown in fill.

Fig. 2.

I -l-Tig. 2, and

- Fig. 5, is e sectional View of en old'style gage cock.

In the drawings l, is the valve stein, formed at its inner extremity with :i valve Q, seated on the conic seat 3 in the inner end of the casing- L The casing comprises a shrink portion 5, tapered inwardly, an inteegril ringor collar G, circuler iii cross section and of greater diameter than the shrink portion and located the top thereof, an annular chamber Z located above 'said ring, sind e screw-threaded neclr 8. The casing is bored longitudinally 'throughout its length to rotetebly receive the valve stein i, which yletter is or uniform diameter snugly itting said bore, and projects thro .gli the outer end of the ciisinff. The portion of the stein outside the casing4 is formed with e. left handed thread 9, which lits e thread in the packing nut l0. the nut suitably screw-three ded to over 'the thread on the neck 8. The thread on the neck is out right handed or opposed Specification of Letters eteiit.

eFig. 3, is e sectional view on line 3-3 o .Application filed March 6, 1919. Serial No. 289,915.

in direction to that of the stein, for the pur pose ot' preventing confusion among operen tives who have been accustomed to handling the old forno o* gege cocks designed to lbe turned to the right in seating; the valve.

As illustrated in 5, the inner end of the stein of old style cocks wus simply topered to constitute :i valve, which had :i seat in the chamber corresponding to chamber 7. To avoid the necessity ot e large zuid cunibcrsoine casing, the stern is of ordinary size and simply cheinitered. To secure therefore, suitable surface, the bore beyond the stern, in open communication with the interior of the boiler must of necessity be very smell. The disadifantzige of so small e bore will liereinzifteibe dwelt upon. llie stem l. is provided with e hond wheel il, secured to the outer end thereof and 'foi-ined with e plui'zility of longitudinal grooves or norts l2, circuinferentielly spaced sind elrteinling` to the base oit .the neck 8. Villien the stein is turned 'to the left, the valve 2 is unseuted and the steein or water, :is the cese may be, will traverse the ports l2 and enter the chamber 7 to escape theretrom through the spigot i3 which letter communicates with the chamber. Extending from the lower tace of the ring` 6 to the end of the shtml; portion 5, and closely fitting around the latter, is the tapered nipgle or sleeve il, having screwthreaded ends The lower end is adopted to be screwed into the wolll of the bo'ier, the nipple being ot suiii'cient length to extend through the; asbestos covering, not shown, over the outer surface of the boiler.

The nipple is permanently secured in position on the boiler, the casing l, being held in posi-` tionby the `holding nut l?, the letter litting over the ringm d and herringthreaded connecn tion with the nipple.

Referring senin to 5, it will be note that the entire cock inust removed iroin the boiler, when it is desired to repair the cock, thus tearing up the asbestos insulation, Further, removal of the cock requires each time, reeuttingf of the threads on the coclr because of inutilationof seine, as it is usually mede of brass.

The duct beyond the stem owing to its smell size, soon fillsv with linie, due to incrustation, because it is et eil times filled with water, whereas in :ipplicents device, water enters the ducts only when the valve is opened.

from the nipple 14, and the casing .vvithf drawn. It has been Afound, that the shank 5 is much more readily removed from the nipple, when the shank is tapered, because of the tendency Ato stick,'due to the deposit of lime which may ind its Way into the joint. The hexagonal section 18 is provided to be gripped for the purpose.

I claim:

A gage cock, comprising a. tubular body of uniform bore having` at its inner end a valve seat and at its opposite end a threaded neck portion, a valve for said seat, a uted stem on said valve rotatably fitting said bore, said flutes constituting ports, said stem eX- tending beyond said body and having a hand Wheel at its outer extremity, a chamber having an outlet surrounding said luted stem adjacent and belon7 said neck'A portion, a

direction to the thread on said neck portion,

"a nut itting at its respective ends the thread of the stem and neck portion, a collar on said body below said chamber, the body betweenv said collar and valve seat iustoconical in form, a sleeve threaded on each of its ends itting over said frusto-conical p0rtion of the body and extending from said seat to said collar and against the latter,- and a connecting nut surroundingsaid body and fitting from above over said collar, the threads of said nut engaging the threads of saidsleeve to hold said body positioned in 35 'the sleeve. y

In testimony whereof I aiX my signature in presence of a Witness.

EDWARD R. KOTTKE.

Witness 1 GEORGE VOELKER. 

